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Ectopic expression of TATA box‐binding protein induces shoot proliferation in Arabidopsis
Author(s) -
Li You-Fang,
Dubois Frédéric,
Zhou Dao-Xiu
Publication year - 2001
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/s0014-5793(01)02101-9
Subject(s) - arabidopsis , meristem , ectopic expression , microbiology and biotechnology , biology , tata binding protein , gene , gene expression , transcription (linguistics) , tata box binding protein , shoot , regulation of gene expression , genetics , botany , promoter , mutant , linguistics , philosophy
The TATA box‐binding protein (TBP) is an essential component of transcription initiation complexes of all three eukaryotic RNA polymerases. Increasing evidence suggests that the TBP activity and availability may be regulated to precisely control gene transcription and play an important role in cell type‐specific regulation. Arabidopsis TBP‐2 is up‐regulated in apical shoot tissues. Overexpression of TBP‐2 in transgenic Arabidopsis induces apical shoot proliferation. The expression of some shoot meristem regulatory genes is altered. These data suggest that the TBP gene dosage and/or expression level may play an important role in controlling shoot production and plant morphology.